less.css variables

When creating a template we have an ability to configure the side panel in such way that we will be able to change the template, color, font size and other parameters. In order for the system to work, we have to create in the themes folder, a folder named css_less and inside of it a file called less.css. The path to it should look like this ./data/themes/ourtemplate/css_less/less.css

In this file we can create our styles and on the top we can declare variables which we will use later in our code. Windu recognizes variables in a special way.